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ec7099fdea
This reverts commit3d5bfbd971. When booting with threadirqs, it causes a splat WARNING: CPU: 0 PID: 29 at kernel/irq/handle.c:159 __handle_irq_event_percpu+0x1ec/0x27c irq 66 handler irq_default_primary_handler+0x0/0x1c enabled interrupts That splat later went away with commit81e2073c17("genirq: Disable interrupts for force threaded handlers"), which got backported to -stable. However, when running an -rt kernel, the splat still exists. Moreover, quoting Thomas Gleixner [1] But3d5bfbd971("gpio: mpc8xxx: change the gpio interrupt flags.") has nothing to do with that: "Delete the interrupt IRQF_NO_THREAD flags in order to gpio interrupts can be threaded to allow high-priority processes to preempt." This changelog is blatantly wrong. In mainline forced irq threads have always been invoked with softirqs disabled, which obviously makes them non-preemptible. So the patch didn't even do what its commit log said. [1] https://lore.kernel.org/lkml/871r8zey88.ffs@nanos.tec.linutronix.de/ Cc: stable@vger.kernel.org # v5.9+ Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Linux kernel
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